Home / 190,890.56-286,209.46-91,066.16

Finding the Fourth Proportional to 190,890.56, 286,209.46 and 91,066.16

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Solution

The fourth proportional to 190,890.56, 286,209.46 and 91,066.16 is: 136,538.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,890.56 : 286,209.46 = 91,066.16 : x
  2. Step 2: Convert to fraction form
    190,890.56/286,209.46 = 91,066.16/x
  3. Step 3: Cross multiply
    190,890.56x = 286,209.46 × 91,066.16
  4. Step 4: Simplify right side
    190,890.56x = 26,063,996,477.87
  5. Step 5: Solve for x
    x = 26,063,996,477.87/190,890.56
  6. Step 6: Final answer
    x = 136,538.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.